參數資料
型號： MPC8548ECVUAUJB
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 32-BIT, 1333 MHz, MICROPROCESSOR, CBGA783
封裝： 29 X 29 MM, 1 MM PITCH, FLIP CHIP, LEAD FREE, CERAMIC, BGA-783
文件頁數： 57/142頁
文件大小： 1504K
代理商： MPC8548ECVUAUJB
MPC8548E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 5
Freescale Semiconductor
21
DDR and DDR2 SDRAM
6.2
DDR SDRAM AC Electrical Characteristics
This section provides the AC electrical characteristics for the DDR SDRAM interface. The DDR
controller supports both DDR1 and DDR2 memories. DDR1 is supported with the following AC timings
at data rates of 333 MHz. DDR2 is supported with the following AC timings at data rates down to
333 MHz.
6.2.1
DDR SDRAM Input AC Timing Specifications
Table 16 provides the input AC timing specifications for the DDR SDRAM when GVDD(typ) = 1.8 V.
Table 17 provides the input AC timing specifications for the DDR SDRAM when GVDD(typ) = 2.5 V.
Table 18 provides the input AC timing specifications for the DDR SDRAM interface.
Table 16. DDR2 SDRAM Input AC Timing Specifications for 1.8-V Interface
At recommended operating conditions
Parameter
Symbol
Min
Max
Unit
AC input low voltage
VIL
—MVREF – 0.25
V
AC input high voltage
VIH
MVREF + 0.25
—
V
Table 17. DDR SDRAM Input AC Timing Specifications for 2.5-V Interface
At recommended operating conditions.
Parameter
Symbol
Min
Max
Unit
AC input low voltage
VIL
—MVREF – 0.31
V
AC input high voltage
VIH
MVREF + 0.31
—
V
Table 18. DDR SDRAM Input AC Timing Specifications
At recommended operating conditions.
Parameter
Symbol
Min
Max
Unit
Notes
Controller Skew for MDQS—MDQ/MECC
533 MHz
400 MHz
333 MHz
tCISKEW
–300
–365
–390
300
365
390
ps
1, 2
Notes:
1. tCISKEW represents the total amount of skew consumed by the controller between MDQS[n] and any corresponding bit that
will be captured with MDQS[n]. This should be subtracted from the total timing budget.
2. The amount of skew that can be tolerated from MDQS to a corresponding MDQ signal is called tDISKEW. This can be
determined by the following equation: tDISKEW = ± (T/4 – abs(tCISKEW)) where T is the clock period and abs(tCISKEW) is the
absolute value of tCISKEW.
相關PDF資料
PDF描述
MPC8547EVTAUJA 32-BIT, 1333 MHz, MICROPROCESSOR, PBGA783
MPC8543CVUANGA 32-BIT, 800 MHz, MICROPROCESSOR, CBGA783
MPC8545CHXANG 32-BIT, 800 MHz, MICROPROCESSOR, CBGA783
MPC8545VUANGB 32-BIT, 800 MHz, MICROPROCESSOR, CBGA783
MPC8547CVTAQJA 32-BIT, 1000 MHz, MICROPROCESSOR, PBGA783
相關代理商/技術參數
參數描述
MPC8548EHXAQG 功能描述:微處理器 - MPU PQ38 8548E RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數據總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數據 RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324
MPC8548EHXATG 功能描述:微處理器 - MPU PQ38 8548E RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數據總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數據 RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324
MPC8548EHXAUJ 功能描述:微處理器 - MPU PQ38 8548E RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數據總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數據 RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324
MPC8548EHXAVH 制造商:Freescale Semiconductor 功能描述:MPU RISC 32BIT CMOS 1.5GHZ 1.8V/2.5V/3.3V - Bulk
MPC8548EHXAVK 制造商:Freescale Semiconductor 功能描述:PQ38 8548E - Bulk
發(fā)布緊急采購，3分鐘左右您將得到回復。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數量 廠商 批號 封裝
添加更多采購

我的聯系方式

*
*
*